-------------------------------------------------------------------The DAO mandate-------------------------------------------------------
The DAO mandate: is to maximise the valuation of "The DAO" price and to maximise the valuation of ETH price.
This gives the authority to people running "The DAO" to take actions that increase the valuation of the tokens and ETH.
Under, this latter mandate, the recovery of obsolete unsupported ETC can be done, so long as the ETC is disposed off, in order to maximise the valuation of "The DAO" and ETH.
Of course, people will disagree with this, but it is August and I'm sure everyone not on holiday is pretty bored
Your point A) The DAO is to maximise the valuation of "The DAO" price and to maximise the valuation of ETH price.
Yes - But on the old chain or the new chain? Original DAO was on the Ethereum Classic chain. The DAO had the function of rewarding investors of the DAO. Maximisation of investors funds involve redistributing ETC to all DAO holders.
Your point B) Under, this latter mandate, the recovery of obsolete unsupported ETC can be done, so long as the ETC is disposed off, in order to maximise the valuation of "The DAO" and ETH.
Disposing ETC would result in scarcity of the coins on the ETC chain. This would not maximise the valuation of ETH however maximise the valuation of ETC.